The goal of the trial was to evaluate cardiac resynchronization therapy (CRT) among patients with heart failure with narrow ... or M-mode; QRS duration < 130 ms (present in all ECG leads); ability ...

A combination of the Q wave, R wave and S wave, the “QRS complex” represents ventricular depolarization. This term can be confusing, as not all ECG leads contain all three of these waves ...

Diffuse T wave inversion is stage III of the ECG changes ... just after the QRS complex. An Osborne wave classically occurs in the setting of hypothermia and is seen as a spike at the end of ...

Electrocardiographic parameters such as type of bundle branch block, atrial fibrillation, paced rhythm, QRS duration, and PR intervals were measured from electrocardiograms (ECGs). The outcome ...

On the ECG, atrial activation appears as a small bump known as the P-wave. Normally, the P-wave is followed a short time later with a narrow spike called the QRS complex. This reflects electrical ...